Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2024	May 10, 2024
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2024
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q1
Entity Registrant Name	Akari Therapeutics, Plc
Entity Central Index Key	0001541157
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		15,847,391,523
Entity Shell Company	false
Entity Small Business	true
Entity Emerging Growth Company	false
Entity File Number	001-36288
Entity Incorporation, State or Country Code	X0
Entity Tax Identification Number	98-1034922
Entity Address, Address Line One	22 Boston Wharf Road
Entity Address, Address Line Two	FL 7
Entity Address, City or Town	Boston
Entity Address, State or Province	MA
Entity Address, Postal Zip Code	02210
City Area Code	929
Local Phone Number	274-7510
Document Quarterly Report	true
Document Transition Report	false
American Depositary Shares
Document Information [Line Items]
Title of 12(b) Security	American Depository Shares, each representing 2,000 Ordinary Shares, par value $0.0001 per share
Trading Symbol	AKTX
Security Exchange Name	NASDAQ
Ordinary shares
Document Information [Line Items]
Title of 12(b) Security	Ordinary Shares, $0.0001 par value per share*
Trading Symbol	AKTX
Security Exchange Name	NASDAQ